* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: "Poppins", sans-serif;
}

html,
body {
	/* background-color: #000000; */
	display: grid;
	height: 100%;
	place-items: center;
	overflow: hidden;
}

.btn-12 {
	position: relative;
	width: 300px;
	height: 95px;
	color: rgb(18, 190, 243);
	letter-spacing: 12px;
	font-size: 35px;
	line-height: 100px;
	text-align: center;
	text-transform: uppercase;
	user-select: none;
	text-decoration: none;
	overflow: hidden;
	/* box-shadow: inset 0 0 10px rgb(14, 20, 105), */
	0 0 5px rgb(9, 208, 235);
	transition: all 0.5s;

}

.btn-12:hover {
	text-shadow: 0 0 5px rgb(18, 190, 243),
		0 0 8px rgb(18, 190, 243),
		0 0 10px rgb(18, 190, 243);

	/* box-shadow: inset 0 0 10px rgb(14, 20, 105),
            0 0 5px rgb(9, 208, 235),
            0 0 10px rgb(9, 208, 235); */
}

.btn-12 span {
	position: absolute;
}

.btn-12 span:nth-child(1) {
	top: 0;
	left: 0;
	width: 100%;
	height: 2px;
	background-image: linear-gradient(to right, transparent, rgb(0, 153, 255));
	animation: move1 2s linear infinite;
}

@keyframes move1 {
	0% {
		transform: translateX(-100%);
	}

	100% {
		transform: translateX(100%);
	}
}

.btn-12 span:nth-child(2) {
	top: 0;
	right: 0;
	width: 2px;
	height: 100%;
	transform: translateY(-100%);
	background-image: linear-gradient(to bottom, transparent, rgb(0, 153, 255));
	animation: move2 2s linear infinite;
	animation-delay: 1s;
}

@keyframes move2 {

	100% {
		transform: translateY(100%);
	}
}

.btn-12 span:nth-child(3) {
	left: 0;
	bottom: 0;
	width: 100%;
	height: 2px;
	background-image: linear-gradient(to left, transparent, rgb(0, 153, 255));
	animation: move3 2s linear infinite;
}

@keyframes move3 {
	0% {
		transform: translateX(100%);
	}

	100% {
		transform: translateX(-100%);
	}
}

.btn-12 span:nth-child(4) {
	top: 0;
	left: 0;
	width: 2px;
	height: 100%;
	transform: translateY(100%);
	background-image: linear-gradient(to top, transparent, rgb(0, 153, 255));
	animation: move4 2s linear infinite;
	animation-delay: 1s;
}

@keyframes move4 {
	100% {
		transform: translateY(-100%);
	}
}